Battery Storage Configuration of AC/DC Hybrid Distribution Networks
作者机构：Key Laboratory of Smart Grid of Ministry of EducationTianjin UniversityTianjin 300072China
出 版 物：《CSEE Journal of Power and Energy Systems》 (中国电机工程学会电力与能源系统学报（英文）)
年 卷 期：2023年第9卷第3期
页 面：859-872页
核心收录：
学科分类：0711[理学-系统科学] 0808[工学-电气工程] 08[工学] 0811[工学-控制科学与工程]
基 金：supported in part by the National Natural Science Foundation of China(No.51777134) in part by a joint project of NSFC of China and EPSRC of UK(No.52061635103 and EP/T021969/1).
主 题：AC/DC hybrid distribution network arbitrage revenue battery energy storage system life cycle cost voltage source converter
摘 要：The upscaling requirements of energy transition highlight the urgent need for ramping up renewables and boosting system efficiencies.However,the stochastic nature of excessive renewable energy resources has challenged stable and efficient operation of the power system.Battery energy storage systems(BESSs)have been identified as critical to mitigate random fluctuations,unnecessary green energy curtailment and load shedding with rapid response and flexible connection.On the other hand,an AC/DC hybrid distribution system can offer merged benefits in both AC and DC subsystems without additional losses during AC/DC power conversion.Therefore,configuring BESSs on an AC/DC distribution system is wellpositioned to meet challenges brought by carbon reductions in an efficient way.A bi-level optimization model of BESS capacity allocation for AC/DC hybrid distribution systems,considering the flexibility of voltage source converters(VSCs)and power conversion systems(PCSs),has been established in this paper to address the techno-economic issues that hindered wide implementation.The large-scale nonlinear programming problem has been solved utilizing a genetic algorithm combined with second-order cone programming.Rationality and effectiveness of the model have been verified by setting different scenarios through case studies.Simulation results have demonstrated the coordinated operation of BESS and AC/DC hybrid systems can effectively suppress voltage fluctuations and improve the cost-benefit of BESSs from a life cycle angle.
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